Odds Ratio Less Than 1

The odds ratio is one of a range of statistics used to assess the risk of a particular

Logistic regressions work with odds rather than proportions. The odds odds . .

>I am looking at the odds ratio table (odds ratio estimates) from a logistic . For

Negative coefficients lead to odds ratios less than one: if expB2 =.67, then a one

Encyclopdia of Public Health - Odds Ratio. . In the standard 2 epidemiological

wide range of true odds ratios, while the methods of Mlettlnen and Woolf are . ..

logical indicating if a confidence interval for the odds ratio in a 2 by 2 table should

ratio less than 1 indicates protection for the negative outcome. Here there is a mix

Apr 3, 2012 . Finally, the odds ratio is the ratio of the odds for some category to some other .

Oct 11, 2002 . An odds ratio greater than one implies that the event is more likely in the first

Jan 6, 2005 . Someone sent me an email asking how to interpret an odds ratio less than 1. An

Can anyone tell me how to calculate p-values from odds ratio? Also what does it

Feb 12, 2012 . Here is a question posted on the web about the interpretation of odds ratios that

Mar 26, 2012 . Less than 1: The trait or factor is linked to a decrease in risk. Relative risks are

Odds ratios greater than one indicate that tolerance goes up across that

odds ratio will be larger than one (with no upper limit); when the experimental

An odds ratio greater than 1 indicates that the condition or event is more likely to

Sep 16, 2002 . Both odds and odds ratios are dimensionless. An odds ratio less than 1 means

Expressed in this way, it is a little easier to see what is going on with the odds

Nov 22, 2010 . For example, the Cochrane group codes the values so that an odds ratio less

The diagnostic odds ratio ranges from zero to infinity, although diagnostic odds

When the odds ratio is over 1, the odds of, say the wife working, increases as the

Third, one can take steps to facilitate interpretations. One could calculate the

If there is no association, the odds ratio will be one. If the exposure is protective

The odds ratio (OR) is one of several statistics that have become . An OR of less

Apr 23, 2011 . Conversely, odds ratio values less than 1 imply that the variables x and y are

For example, �The odds ratio was 0.75 with a 95% confidence interval of 0.70 to

Here we would expect a negative association, so the odds ratio would have to be

odds ratios tend to exaggerate relative risk. Odds ratios greater than 1 tend to

If it reduces the chance of having the event, the odds ratio will be less than 1; if it

An odds ratio greater than one implies that an event is more likely in the first

As with relative risk, an odds ratio greater than 1 im- plies a positive association

Apr 4, 2007 . Though they may sound synonymous, the odds ratio and the relative . . is more

Some folks have problems with odds ratios less than 1. Just invert the odds ratio.

If 74% of households with savings rules spend less than income,. the odds = 0.74

but also that it will be inferior to the MH estimator for odds ratios less than 1. The

Sometimes both the upper bound and the lower bound are greater than one. In

occurrence to the whole) or odds (a ratio of occurrence to non- occurrence). . .

available are the purchase price (coded as 1 if purchase $100 or more, 0 if

An odds ratio greater than 1 indicates that the odds of a positive response are

Mar 28, 1998 . We know that if the odds ratio is less than one then the odds (and therefore the

An odds ratio of greater than one means that the exposure may increase the risk

Clinical trials typically look for treatments which reduce event rates, and which

One would expect that because this is the definition of Exposure to Ad- verse

For relative risk = � > 1, this ratio is greater than one =) OR > RR. For relative risk

Mar 10, 2011 . Alternatively, for OR F vs M = odds(F)/odds(M), we can see that if the odds(F) <

odds ratio overestimates the risk ratio when it is more than 1 or underestimates it

Values for both risk ratios and odds ratios less than 1 are bounded by 0. In that

For both risk and odds, the lower limit is 0. For any level of risk or odds under no

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ODDS RATIO LESS THAN 1